Are you here in the Twin Cities?
Not many folks outside of the cities can whip out "Golden Valley" like you just did LOL!
If so, here is your Dwarf or SD retic option.
https://www.facebook.com/monstercages
MarkS mentioned Chase Delles. "Chase Reptiles". Chase deals with mainland retics, but I'll bet he could find a male mainland line that would stay smaller if fed properly. I always think about my coastal hitting that 10 foot mark and not being concerned. If the animal is slender (reasonably) it doesn't present nearly the amount handling issues an 8 foot female BCC would when weight factors in.
If you are a USARK member there is always Kris at Vital Exotics in WI.